<%#
 Copyright 2008-2009 Steven Barth <steven@midlink.org>
 Copyright 2008-2015 Jo-Philipp Wich <jow@openwrt.org>
 Licensed to the public under the Apache License 2.0.
-%>

<%-

	local ip = require "luci.ip"
	local fs = require "nixio.fs"
	local utl = require "luci.util"
	local uci = require "luci.model.uci".cursor()
	local ntm = require "luci.model.network"

	local has_iwinfo = pcall(require, "iwinfo")

	ntm.init(uci)

	function guess_wifi_hw(dev)
		local bands = ""
		local ifname = dev:name()
		local name, idx = ifname:match("^([a-z]+)(%d+)")
		idx = tonumber(idx)

		if has_iwinfo then
			local bl = dev.iwinfo.hwmodelist
			if bl and next(bl) then
				if bl.a then bands = bands .. "a" end
				if bl.b then bands = bands .. "b" end
				if bl.g then bands = bands .. "g" end
				if bl.n then bands = bands .. "n" end
				if bl.ac then bands = bands .. "ac" end
			end

			local hw = dev.iwinfo.hardware_name
			if hw then
				return "%s 802.11%s" %{ hw, bands }
			end
		end

		-- wl.o
		if name == "wl" then
			local name = translatef("Broadcom 802.11%s Wireless Controller", bands)
			local nm   = 0

			local fd = nixio.open("/proc/bus/pci/devices", "r")
			if fd then
				local ln
				for ln in fd:linesource() do
					if ln:match("wl$") then
						if nm == idx then
							local version = ln:match("^%S+%s+%S%S%S%S([0-9a-f]+)")
							name = translatef(
								"Broadcom BCM%04x 802.11 Wireless Controller",
								tonumber(version, 16)
							)

							break
						else
							nm = nm + 1
						end
					end
				end
				fd:close()
			end

			return name

		-- ralink
		elseif name == "ra" then
			return translatef("RaLink 802.11%s Wireless Controller", bands)

		-- hermes
		elseif name == "eth" then
			return translate("Hermes 802.11b Wireless Controller")

		-- hostap
		elseif name == "wlan" and fs.stat("/proc/net/hostap/" .. ifname, "type") == "dir" then
			return translate("Prism2/2.5/3 802.11b Wireless Controller")

		-- dunno yet
		else
			return translatef("Generic 802.11%s Wireless Controller", bands)
		end
	end

	local devices = ntm:get_wifidevs()
	local netlist = { }
	local netdevs = { }

	local dev
	for _, dev in ipairs(devices) do
		local net
		for _, net in ipairs(dev:get_wifinets()) do
			netlist[#netlist+1] = net:id()
			netdevs[net:id()] = dev:name()
		end
	end
-%>

<%+header%>

<% if not has_iwinfo then %>
	<div class="alert-message warning">
		<h4><%:Package libiwinfo required!%></h4>
		<p><%_The <em>libiwinfo-lua</em> package is not installed. You must install this component for working wireless configuration!%></p>
	</div>
<% end %>

<script type="text/javascript" src="<%=resource%>/cbi.js"></script>
<script type="text/javascript">//<![CDATA[
	var wifidevs = <%=luci.http.write_json(netdevs)%>;

	var is_reconnecting = false;

	function wifi_shutdown(id, toggle) {
		var reconnect = (toggle.getAttribute('active') == 'false');

		if (!reconnect && !confirm(<%=luci.http.write_json(translate('Really shut down network? You might lose access to this device if you are connected via this interface'))%>))
			return;

		is_reconnecting = true;

		var s = document.getElementById('iw-rc-status');
		if (s)
		{
			s.parentNode.style.display = 'block';
			s.innerHTML = '<%:Waiting for changes to be applied...%>';
		}

		for (var net in wifidevs)
		{
			var st = document.getElementById(net + '-iw-status');
			if (st)
				st.innerHTML = '<em><%:Wireless is restarting...%></em>';
		}

		(new XHR()).post('<%=url('admin/network')%>/wireless_' + (reconnect ? 'reconnect' : 'shutdown') + '/' + id, { token: '<%=token%>' },
			function(x)
			{
				if (s)
				{
					s.innerHTML = reconnect
						? '<%:Wireless restarted%>'
						: '<%:Wireless shut down%>';

					window.setTimeout(function() {
						s.parentNode.style.display = 'none';
						is_reconnecting = false;
					}, 1000);
				}
			}
		);
	}

	function wifi_delete(id) {
		if (!confirm(<%=luci.http.write_json(translate('Really delete this wireless network? The deletion cannot be undone! You might lose access to this device if you are connected via this network.'))%>))
			return;

		(new XHR()).post('<%=url('admin/network/wireless_delete')%>/' + id, { token: '<%=token%>' },
			function(x) {
				location.href = '<%=url('admin/network/wireless')%>';
			}
		);
	}

	var hosts = <%=luci.http.write_json(luci.sys.net.host_hints())%>;

	XHR.poll(5, '<%=url('admin/network/wireless_status', table.concat(netlist, ","))%>', null,
		function(x, st)
		{
			if (st)
			{
				var rowstyle = 1;
				var radiostate = { };

				st.forEach(function(s) {
					var r = radiostate[wifidevs[s.id]] || (radiostate[wifidevs[s.id]] = {});

					s.is_assoc = (s.bssid && s.bssid != '00:00:00:00:00:00' && s.channel && s.mode != 'Unknown' && !s.disabled);

					r.up        = r.up        || s.is_assoc;
					r.channel   = r.channel   || s.channel;
					r.bitrate   = r.bitrate   || s.bitrate;
					r.frequency = r.frequency || s.frequency;
				});

				for( var i = 0; i < st.length; i++ )
				{
					var iw = st[i];
					var p = iw.quality;
					var q = iw.is_assoc ? p : -1;

					var icon;
					if (q < 0)
						icon = "<%=resource%>/icons/signal-none.png";
					else if (q == 0)
						icon = "<%=resource%>/icons/signal-0.png";
					else if (q < 25)
						icon = "<%=resource%>/icons/signal-0-25.png";
					else if (q < 50)
						icon = "<%=resource%>/icons/signal-25-50.png";
					else if (q < 75)
						icon = "<%=resource%>/icons/signal-50-75.png";
					else
						icon = "<%=resource%>/icons/signal-75-100.png";

					var sig = document.getElementById(iw.id + '-iw-signal');
					if (sig)
						sig.innerHTML = String.format(
							'<span class="ifacebadge" title="<%:Signal%>: %d <%:dBm%> / <%:Noise%>: %d <%:dBm%>"><img src="%s" /> %d%%</span>',
							iw.signal, iw.noise, icon, p
						);

					var toggle = document.getElementById(iw.id + '-iw-toggle');
					if (toggle)
					{
						if (!iw.disabled)
						{
							toggle.className = 'cbi-button cbi-button-neutral';
							toggle.value = '<%:Disable%>';
							toggle.title = '<%:Shutdown this network%>';
						}
						else
						{
							toggle.className = 'cbi-button cbi-button-neutral';
							toggle.value = '<%:Enable%>';
							toggle.title = '<%:Activate this network%>';
						}

						toggle.setAttribute('active', !iw.disabled);
					}

					var info = document.getElementById(iw.id + '-iw-status');
					if (info)
					{
						if (iw.is_assoc)
							info.innerHTML = String.format(
								'<strong><%:SSID%>:</strong> %h | ' +
								'<strong><%:Mode%>:</strong> %s<br />' +
								'<strong><%:BSSID%>:</strong> %s | ' +
								'<strong><%:Encryption%>:</strong> %s',
									iw.ssid, iw.mode, iw.bssid,
									iw.encryption ? iw.encryption : '<%:None%>'
							);
						else
							info.innerHTML = String.format(
								'<strong><%:SSID%>:</strong> %h | ' +
								'<strong><%:Mode%>:</strong> %s<br />' +
								'<em>%s</em>',
									iw.ssid || '?', iw.mode,
									is_reconnecting
										? '<em><%:Wireless is restarting...%></em>'
										: '<em><%:Wireless is disabled or not associated%></em>'
							);
					}
				}

				for (var dev in radiostate)
				{
					var img = document.getElementById(dev + '-iw-upstate');
					if (img)
						img.src = '<%=resource%>/icons/wifi' + (radiostate[dev].up ? '' : '_disabled') + '.png';

					var stat = document.getElementById(dev + '-iw-devinfo');
					if (stat)
						stat.innerHTML = String.format(
							'<strong><%:Channel%>:</strong> %s (%s <%:GHz%>) | ' +
							'<strong><%:Bitrate%>:</strong> %s <%:Mbit/s%>',
								radiostate[dev].channel ? radiostate[dev].channel : '?',
								radiostate[dev].frequency ? radiostate[dev].frequency : '?',
								radiostate[dev].bitrate ? radiostate[dev].bitrate : '?'
						);
				}
			}
		}
	);
//]]></script>

<h2 name="content"><%:Wireless Overview%></h2>

<div class="cbi-section" style="display:none">
	<legend><%:Reconnecting interface%></legend>
	<img src="<%=resource%>/icons/loading.gif" alt="<%:Loading%>" style="vertical-align:middle" />
	<span id="iw-rc-status"><%:Waiting for changes to be applied...%></span>
</div>

<div id="cbi-wireless-overview" class="cbi-map">

	<% for _, dev in ipairs(devices) do local nets = dev:get_wifinets() %>
	<!-- device <%=dev:name()%> -->
	<div class="cbi-section-node">
		<div class="table">
			<!-- physical device -->
			<div class="tr">
				<div class="td col-2 center">
					<span class="ifacebadge"><img src="<%=resource%>/icons/wifi_disabled.png" id="<%=dev:name()%>-iw-upstate" /> <%=dev:name()%></span>
				</div>
				<div class="td col-7 left">
					<big><strong><%=guess_wifi_hw(dev)%></strong></big><br />
					<span id="<%=dev:name()%>-iw-devinfo"></span>
				</div>
				<div class="td cbi-section-actions">
					<form action="<%=url('admin/network/wireless_join')%>" method="post" class="inline">
						<input type="hidden" name="device" value="<%=dev:name()%>" />
						<input type="hidden" name="token" value="<%=token%>" />
						<input type="submit" class="cbi-button cbi-button-action" title="<%:Find and join network%>" value="<%:Scan%>" />
					</form>
					<form action="<%=url('admin/network/wireless_add')%>" method="post" class="inline">
						<input type="hidden" name="device" value="<%=dev:name()%>" />
						<input type="hidden" name="token" value="<%=token%>" />
						<input type="submit" class="cbi-button cbi-button-add" title="<%:Provide new network%>" value="<%:Add%>" />
					</form>
				</div>
			</div>
			<!-- /physical device -->

			<!-- network list -->
			<% if #nets > 0 then %>
				<% for i, net in ipairs(nets) do %>
				<div class="tr cbi-rowstyle-<%=1 + ((i-1) % 2)%>">
					<div class="td col-2 center" id="<%=net:id()%>-iw-signal">
						<span class="ifacebadge" title="<%:Not associated%>"><img src="<%=resource%>/icons/signal-none.png" /> 0%</span>
					</div>
					<div class="td col-7 left" id="<%=net:id()%>-iw-status">
						<em><%:Collecting data...%></em>
					</div>
					<div class="td cbi-section-actions">
						<input id="<%=net:id()%>-iw-toggle" type="button" class="cbi-button cbi-button-neutral" onclick="wifi_shutdown('<%=net:id()%>', this)" title="<%:Enable this network%>" value="<%:Enable%>" />
						<input type="button" class="cbi-button cbi-button-action important" onclick="location.href='<%=net:adminlink()%>'" title="<%:Edit this network%>" value="<%:Edit%>" />
						<input type="button" class="cbi-button cbi-button-negative" onclick="wifi_delete('<%=net:id()%>')" title="<%:Delete this network%>" value="<%:Remove%>" />
					</div>
				</div>
				<% end %>
			<% else %>
				<div class="tr cbi-rowstyle-2">
					<div class="td left">
						<em><%:No network configured on this device%></em>
					</div>
				</div>
			<% end %>
			<!-- /network list -->
		</div>
	</div>
	<!-- /device <%=dev:name()%> -->
	<% end %>


	<h2><%:Associated Stations%></h2>

	<%+admin_network/wifi_assoclist%>
</div>

<%+footer%>
